User Manual - NEXT
Contents
1. When applied to the PX System V012015 E MS NEXT PXA8000 User Manual TT www nex proaudio con WARRANTY NEXT products are warranted by NEXT proaudio against manufacturing defects in materials or craftsmanship over a period of 5 years for the loudspeakers and 2 years for the other components counting from the date of original purchase The original receipt of purchase is mandatory for warranty validation purposes and the product must have been bought from a NEXT proaudio authorized dealer During the warranty period NEXT proaudio will at its own discretion either repair or replace a product which prove to be defective provided that the product is returned in its original packaging shipping prepaid to an authorized NEXT proaudio service agent or distributor NEXT proaudio cannot be held responsible for defects caused by unauthorized modifications improper use negligence exposure to inclement weather conditions act of God or accident or any use of this product that is not in accordance with the instructions provided by this manual and or NEXT proaudio NEXT proaudio is not liable for consequential damages This warranty is exclusive and no other warranty is expressed or implied This warranty does not affect your statutory rights CONTACTS In case of any doubts or any information Write us NEXT proaudio Rua da Venda Nova 295 4435 469 Rio Tinto Portugal Contact us Tel 351 222. 489 00 75 Fax 351 22 480 50 97 Send an e mail info next proaudio com Search our website www next proaudio com 12
3. 49 Two PXH64 and four PXL118 can be driven with extreme operational reliability sound quality and affordable price The digital audio processor unit the NSOUND DP240 protects and optimizes the entire system All necessary signal processing functions like equalization crossover filters delays and limiters are setup at the factory for plug n play CABLE SELECTING Selecting a cable consists of calculating the correct cable section size in relation to the load impedance and the required cable length A small cable section will increase its serial resistance which will induce power loss and response variations damping factor The following table indicates for 3 common sizes a cable length with a maximum serial resistance equal to 4 of the load impedance damping factor 25 Cable section Maximum Length related to load impedance 80 42 1 5 mm2 12 m 40 ft 6 m 20 ft 2 5 mm 20 m 64 ft 10 m 32 ft 4 mm 32 m 104 ft 16 m 52 ft Next PXA8000 User Manual TT www nex ptoaudio Con CONNECTIONS AND OPERATION Next PXA8000 is very easy to use The connections panel is intuitive and doesn t require much user interference There is one mono balanced signal XLR3 input paralleled with a XLR3 output and two NL8 power outputs also paralleled Each NL8 socket is connected in order to drive one PXH64 and two PXL118 The cabling to achieve this is supplied by NEXT proaudio when the PXA8000 is ac
4. POWER DIAGRAM OPERATION The NEXT PXA8000 was originally designed as part of the PX System Because of its great aesthetic look little weight and great versatility it is today applied in many other situations Because of that the signal was arranged in order to support any kind of system Digital audio Processor CHANNEL 1 PROCESSING CHANNEL 2 PROCESSING INPUT I CHANNEL 3 PROCESSING XLR PINOUT 1 Ground CHANNEL 4 PROCESSING 2 Positive 3 Negative Amplifier OUTPUT 4 AMPLIFIER CHANNEL 4 NL8 4 4 n OUTPUT 3 4 AMPLIFIER CHANNEL 3 NL8 3 3 OUTPUT 2 AMPLIFIER CHANNEL 2 NL8 2 2 OUTPUT 1 AMPLIFIER CHANNEL 1 NL8 1 1 1 PXA8000 SIGNAL DIAGRAM Next PXA8000 User Manual o www nex ptoaudio Con As you can see above all output channels are independent and have their own individual processing allowing the PXA8000 to drive a wide selection of system arrangements In the PX System they have the following assignments PX System channel distribution Channel 1 NL8 pins 1 1 PXL118 SUB 1 Channel 2 NL8 pins 2 2 PXL118 SUB 2 Channel 3 NL8 pins 3 3 PXH64 MID Channel 4 NL8 pins 4 4 PXH64 HIGH TWARNING PXA8000 s recommended minimum impedance is 42 Though the amplifier is capable of driving 20 impedances NEXT P
5. VUs respond and the output VUs do not then most probably you have a faulty DP240 unit If it s only one channel missing and the correspondent VU is responsive check the cables of the system and switch the elements If the element functions with other channels then either the processor or the amplifier is faulty If the above does not solve the problem send your PXA8000 unit to an authorized dealer for servicing 10 Next PXA8000 User Manual o www nex ptoaudio con TECHNICAL SPECIFICATIONS PXA8000 TECHNICAL SPECIFICATIONS Model Type PX System Power Rack Operatin vus j ua jdn 115 265 Vac 16A 50 60Hz Dimensions W x H x D 600 x 182 x 641 Weight 21 Kg DSP Section Input impedance gt 10KQ Max Input Impedance 20 dBu Input Type Electronically Balanced Processor DSP 40 bit Floating Point Sample Rate 48 KHz Analogue Convertors 24 bit Propagation Delay 1 5 ms DSP Functions Crossover Equalizer Compressor Delay Gain Program memories 30 Display 2 x 16 Characters Backlit LCD Amplifier Section LOW LOW p MID HIGH 1 2 Rated Output Power 89 1250W Limited to 1250W Limited to 1250W 1250W 800W 160W Rated Output Power 49 2100W Limited to 2100W Limited to 2100W 2100W 1600W 320W THD at 1 KHz 0 05 Signal to Noise Ratio 112 dB Channel Separation at 1 gt 70 dB KHz DIMENSIONS
6. essor starts but there s no reaction from the amplifier With the help of the flashlight try to look through the openings on the PXA8000 back panel and check if the power switch is in the on position The power switch is located on the right side of the amplifier V012015 9 NEXT PXA8000 User Manual TT www nex proaudio con Unscrew and gently remove the front grille and check that the amplifier AC plug is correctly connected to the inner AC outlet If the above does not solve the problem send your PXA8000 to an authorized dealer for servicing 4 My PXA8000 switches on and seems to start correctly but there s no sound on the system or one of the elements Go through steps 2 and 3 to check that you didn t miss anything Especially with the amplifier it is easy not to notice if it is on or not With the help of a flashlight look through the openings on the PXA8000 s back panel and try to check that the amplifier s volume rotary potentiometers are on the OdB position Check the processor input VUs If there is no response from the input channel A VU there may be a problem with your signal cable or other equipment If possible try the PXA8000 with another cable and or switch channels on the mixer equalizer other If the above does not solve the problem unscrew and remove the DP240 check that the signal cable is correctly plugged in and locked on input channel A Check the output VUs If the input
7. mute unmute a channel press the mute buttons shown above on points 4 and 5 It is possible to mute any channel inputs and or outputs For more detailed information regarding the NSOUND DP240 digital audio processor refer to its manual TROUBLESHOOTING In this section will take a look on the most common problems known Most of the time these issues have a simple solution but of course as any electronic device PXA8000 can fail In case you have to send the PXA8000 to a dealer for servicing always send the PXA8000 as is Never take the components out and send them alone Only with the entire system can we assure that your problem will be completely solved Having this in mind look below for some most common problems 1 When I switch on the PXA8000 nothing happens Verify that there is voltage present on the mains outlet Check that the Powercon is correctly plugged in and locked on Try with another cable if the above doesn t solve the problem If any of the above solves the problem send your PXA8000 to an authorized dealer for servicing 2 When I switch on the PXA8000 the amplifier starts but there s no reaction from the processor Remove the four screws of the NSOUND DP240 Pull it out gently Check that the IEC cable is correctly inserted and the processor is switched on If the above does not solve the problem send your PXA8000 to an authorized dealer for servicing 3 When I switch on the PXA8000 the proc
8. quired as a component of the PX System and is explained further below on the System Deployment chapter Everything is done on the back of the rack mount including the audio processor interface in order to maintain a good aesthetic look on the front of the system and hide the controls and connections PXA8000 Connections 1 XLR Paralleled balanced input output 2 NL8 Paralleled Speakon Outputs 3 Powercon power socket 4 Power switch Power On Off Considerations The NEXT PXA8000 is a fully integrated audio processing system It is comprised of a digital signal processor and a 4 channel powerful NEXT amplifier When we power on the system their own internal protections prevent power surges That is not the case we power off the system Because of that NEXT engineers developed a power off delay circuit also integrated that protects the entire system from power surges delaying the signal processor power off For this circuit to work it s imperative that the PXA8000 is connected to mains outlet in the entire process Never cut power to PXA8000 through No cables or plugs are supplied when PXA8000 is acquired as a stand alone equipment V012015 5 NEXT PXA8000 User Manual www next proaudio com cable disconnection or exterior circuit breakers Always power off the PXA8000 using the power switch on the connections panel AC DELAY 220V 115V CONTROL CIRCUIT AMPLIFIER PROCESSOR PXA8000 AC
9. roaudio does not recommend working in such conditions PX SYSTEM DEPLOYMENT The PX SYSTEM is an easy to use fast deployment system For normal ground stacked operation all cables are included with the system and are organized as follows Stereo Single Stack PXH64 PXH64 PXA8000 PXA8000 PXL118 2 PXL118 2 PXL118 1 PXL118 1 V012015 7 NEXT PXA8000 User Manual www next proaudio com Stereo Double Stack 1 PXH64 PXH64 PXH64 PXH64 PXA8000 PXTRAY PXA8000 PXTRAY PXL118 2 PXL118 2 PXL118 2 PXL118 2 PXL118 1 PXL118 1 PXL118 1 PXL118 1 NSOUND DP240 The digital signal processor integrated on PXA8000 is the NSOUND DP240 By NEXT It delivers excellent sound quality and an impressive variety of processing functions Below is an introduction to its front panel DIGITAL SPEAKER PROCESSOR SOUND DP240 2INAOUTfRO AUDIO MANAGEMENT SYSTEM NSOUND GENERAL DESCRIPTION 1 LCD Display Backlit Menu access and browse buttons Menu programing rotary switches BP VU N Input channels mute programing buttons 5 Output channels mute programing buttons Next PXA8000 User Manual o www nexptoaudio con When integrated in the PX System the DP240 is fully programmed and the user interface is blocked When blocked the DP240 does not allow any kind of user input besides channel muting To
10. s be followed m Read all SAFETY INSTRUCTIONS before using this device 2 This apparatus must be connected to a mains socket outlet with a protective grounding connection If it has malfunction or breaks down grounding provides a path of less resistance for electric current reducing risk of electric shock 3 Do not expose NEXT PXA8000 to rain or moisture 4 NEXT PXA8000 should be positioned in a way that nothing can block or interfere with proper ventilation 5 Do not expose NEXT PXA8000 to heat sources 6 Unplug the power cord when NEXT PXA8000 will be inoperative for long periods of time 7 Care should be taken so objects do not fall or liquids are not spilled into the NEXT PXA8000 through openings 8 NEXT PXA8000 should be serviced by qualified personnel only when 8 1 Objects have fallen or liquid has been spilled into it 8 2 It has been exposed to rain or moisture 8 3 It does not appear to operate normally or exhibits an undesired marked change in performance 8 4 It has been dropped or the enclosure damaged Next PXA8000 User Manual TT www nex proaudio con 9 No user servicing parts inside Refer servicing to qualified personnel only There is risk of electric shock Stacking NEXT PXA8000 was designed to be stacked within the PX system Always ensure that the floor or structure where the stack will be positioned is even and can withstand the weight of the system Do not stack speakers too high e
11. specially outdoor where winds could topple the stack Be aware that speakers working at very high levels generate vibrations that can creep the systems NEXT PX system is prepared to work in such conditions as every enclosure has pockets made to accommodate the element above it but still be prepared to take additional measures if needed Place cables in a way that they do not present a trip hazard Never place any objects on top of the stack they can fall accidentally and cause injuries Do not attempt to move the systems while connected Rigging and suspension NEXT PXA8000 was also designed to work suspended if needed Before suspending any NEXT PX system component inspect all components and all hardware for any signs of damage or missing parts If you find any damaged corroded or deformed parts do not use them replace them immediately Do not use hardware that isn t load rated or that its rating is not enough to handle the system s weight with a good safety factor Don t forget that the hardware won t just hold the systems weight it has to be sturdy enough to handle dynamic forces like winds without any part deformation NEXT PX system installation should only be carried out by qualified personnel Always use adequate protective clothing and equipment to prevent possible injuries Isolate the surrounding area during installation and operation to prevent general public presence near the systems Also be sure you understand all local and na
12. tional regulations regarding equipment installation Failure to comply with these instructions may result on injury or death UNPACKING Each NEXT PX system component is built in Europe Portugal by NEXT Proaudio to the highest standard and thoroughly inspected before it leaves the factory When unpacking the NEXT PXA8000 examine it carefully for any signs of possible transit damage and inform your dealer immediately if any such damage is found V012015 3 NEXT PXA8000 User Manual TT www nex proaudio con It is suggested that you retain the original packaging so that the system can be repacked in the future if necessary Please note that NEXT Proaudio and its authorized distributors cannot accept any responsibility for damage to any returned product through the use of non approved packaging NEXT PXA8000 OVERVIEW Perfectly integrated the PX system Power Rack is the heart of the system Composed by a very powerful four channel amplifier with switching power supply and a digital audio processor this power rack is capable of driving a wide range of system configurations with absolute reliability and ample headroom The system amplifier is based in class H technology and is built with a state of the art switching power supply weighting only 12 Kg Working at optimal efficiency little power is wasted and the need for heat dissipation is reduced resulting in long term reliability with an astounding power output of 4 x 2100W into
13. www next proaudio com USER MANUAL PXA8000 PX System Professional Power Rack V012015 Next PXA8000 User Manual TT www nex ptoaudio con INDEX INTRODUCTION e 2 SAFETY FIRS te E 2 M edic Rd 3 NEXT PXA8000 OVERVIEW 2 5 cea aeo cepa eer DEK ER ee ee ee Ge Ne Ee Ge ee eg ee se 4 eed age di sl EE IE EO EE IE EE 4 CONNECTIONS AND OPERA TION oen enia Ge Eg BEG ette eat Deb Ge Se De Ge ES ED 5 PX SYSTEM DEPLOYMENT s iac ce bo oe ese pot efe oot ey De ee efe De co Doe sen Dee De DE 7 NSOUND DP2 40 Est ses ke si ER Ge eb ee ee Ge ke GE ge 8 TROUBLESHOOTING zc se ed one ee id eS oe Ai oe ead ee ee 9 TECHNICAL SPECIFICAT ONS Ee Me ace o rogatu eden teo ed ee Ee ee ee ig 11 Billa bie ARE EE EE AE EE 11 WARRANTY asie sos ee Dei de Se ee DE Se n On a ris dia De Dee DE OR De 12 CONTACTS AU DE 12 VO12015 sis NEXT PXA8000 User Manual TT www nex ptoaudio Con INTRODUCTION Thank you for purchasing a NEXT PXA8000 power Rack This manual will provide you important information about your new NEXT PXA8000 Please devote some time reading this manual and keep it at hand for future reference NEXT Proaudio is concerned with your safety and well being so please follow all instructions and heed all warnings Also a better understanding of the operation of NEXT PXA8000 will help you to operate it to its full potential SAFETY FIRST WARNING When using electrical products basic precautions should alway
Download Pdf Manuals
Related Search